SAN Miguel Corp. on Tuesday unveiled its biggest sustainability project which involves the reduction in its use of water by 50 percent across its businesses by 2025, the country’s largest conglomerate announced during the celebration of World Water Day.
San Miguel said the project would employ measures such as water recycling, conservation and rainwater harvesting to meet the target by 2025.
It said it was taking on its own water sustainability challenge to reduce water usage and educate employees, business partners and communities about water stewardship.
San Miguel said it was rolling out an integrated water management system across its entire operations in a bid to further mesh sustainability into its business goals and processes.
Water is an essential ingredient to many of San Miguel’s brands. Beer is 90 percent water, and liquor is around 85 percent water. Across the San Miguel Group, water is used to clean, cool, heat, produce steam and pasteurize. It is an important input to raw materials and packaging and major input to the power and oil refining industries.
“San Miguel is going to set an example in its responsible use and management of water,” said SMC president and chief operating officer Ramon Ang.
“Many of our facilities are already efficient in terms of using water, but we can always do more. Given the scale of our need, we’re working to become more conscious about our water footprint,” he said.
A major component of San Miguel’s water strategy involves minimizing the amount of water it draws from ground water sources, and instead reusing and recycling process water and harvesting rainwater.
The company said it could also utilize surface runoff water (usually excess stormwater) from mountains, creeks and rivers and filter and store these for irrigation.
Ang said the first year of implementation would focus on establishing baseline information, data that would then be analyzed to see where the company could improve both, in terms of efficiency and conservation.
Metering and establishing operating standards is the first order of the day. While many of the newer plants have water meters per line and per process, other older facilities need to be fitted with additional meters.
Installing separate water meters will make water audits relatively easier to perform, prevent wastage and improving efficiency.
San Miguel’s newer facilities are all built with smart water usage in mind. Petron’s RMP-2 plant in Limay, Bataan is outfitted with the latest technology to reduce freshwater and groundwater consumption and minimize the environmental impact of wastewater discharge from its oil and gas operations.
Much of the raw water used by RMP-2 comes from the sea via a state-of-the art desalination facility. Desalination is a process that transforms salt water into consumable water.
Built at the cost of P474 million, the desalination plant supplies 25 percent of the roughly 2,100 cubic meters per hour total water requirements of the refinery.
An estimated 60 percent amount of the total amount of water the refinery uses goes to its boiler-houses”•to produce high-pressure steam that, in turn, is used both to generation power and to process steam.
For Petron RMP-2, further areas for water efficiency improvements are in power generation and the refining process itself. Recycling water is an important aspect of the refinery integrated water management system.
About 67 percent of the water RMP-2 uses is cycled back into the operations before being returned to the sea nearby.
Ang challenged the refinery operators to further increase the amount of recycled water without sacrificing product quality.
“It can be done. With technology in our newer facilities, we have enormous innovative capacity to tackle the challenge of water scarcity and create positive water impact,” he said.
Another business where much has already been done in terms of improving water usage is San Miguel’s beer business. The company owns and manages five breweries, and a packaging plant in the Philippines.
Water is not only beer’s principal ingredient but also essential in the brewing process. Further driving up water usage in the production of beer is the use of agricultural raw material inputs that also place great demands on water.
In the brewing process, water is used in generating steam, and in the cooling and washing processes. With water efficiency rates ranging from 4.0 to roughly 3.5 hectoliters per hectoliter of beer, San Miguel Brewery’s efficiency levels have improved significantly over the last 10 years.
A decade ago, water usage was between a ratio of 5.4 and 4.3 per hectoliter. Nevertheless, the country’s leading brewer is looking to improve levels by reducing the amount of water related to packaging.
Each of the five breweries are equipped with on-site water treatment facilities, but Ang said he was confident that improvements could still be made to recapture and reuse wastewater across the operations.
With more fine-tuning in utility management and wastewater recovery, water use can potentially be cut down by as much as 20 percent in the older plants.
“At the simplest level, it’s about educating our employees to be more conscious about our water footprint,” Ang said.
“No effort is too small. In many of our facilities, we’ve fitted things like pre-rinse spray taps and low-flush toilets or percussive taps. We regularly monitor for leaks and we’re educating our employees on the importance of conservation. We’re looking to building cisterns and systems to collect rainwater,” he said.
San Miguel is also participating in large-scale government PPP projects. To provide a stable water supply to 21 municipalities and three cities in Bulacan, San Miguel signed a concession agreement to undertake the P16-billion Bulacan Bulk Water Supply System.
“Water is a basic human resource and a basic right. But it is also an essential ingredient to our products and business. Our responsibility therefore is far greater than most. We hope many other companies will follow our example,” Ang said.